Lock.



P. RAINONE.

LOCK.

APPLICATION FILED Ammo. 191e.

Patented Jam. 23, 1917.

2 SHEETS-SHEET l.

MIMI.

IIIIIII IIIIII mr mms persas co4. uom-urne wAsmNsmN. nv cv P.. RAINONE.

LOCK.

APPLICATION FILED AUG. I0. me.

Patented Jan. 23, 1917.

2 SHEETS-SHEET 2..

Eiga? PASQUALE BAINONE, F NEW YORK, N. Y.

LOCK.

Specification of Letters latent.

patented Jan.. 23, 191% Application filed August 10, 1916. Serial ITo. 114,099.

To all whom t may concern.'

Be it known that 1, PASQUALE RAINONE, a subject of the King of Italy, residing at New York, in the county of New York and Statev of New York, have invented certain new and useful mprovements in Locks, of which the following is a full, clear, and eX- act description.

This invention relates to locks (for all purposes), and its ob] ect is to provide an improved lock of the key-operated type which 1 term a semi-combination lock, that is, one that can be operated by the key only when the latter is manipulated in a particular manner, thus making it impossible to operate the lock to open the same even by a person who has the key, unless such person also knows the manner and order in which key-operations are performed.

To this and other ends the invention consists in the novel features and combinations hereinafter described.

Tn the preferred form of my invention the complete lock comprises two locks, a primary and a secondary. rThe former serves the usual function, namely, to hold a door, lid, or other closure in closed position, while the secondary lock coperates with the primary tc prevent release of the latter, even by the proper key, until the secondary itself is operated by the particular manipulation of the key. This form is illustrated in the accompanying drawings, in which- Figure 1 is an outside view of the complete lock, in perspective, showing the primary and secondary locks l), S, respectively, but omitting the staple-member with which the bolts of the primary lock coperate to hold the door (or other closure) in closed position. Fig. 2 is a cross section on line 2-2 of Fig. 4, showing the key inserted in the secondary lock. Fig. 3 is a plan view of the primary lock. Fig. 4 is a plan view of the secondary lock, showing the key in its position when first inserted, before being turned. Fig. 5 is a detail plan view of part of the secondary lock. Figs. 6, 7, 8 and 9 are plan views of the complete lock (the secondary lock being uppermost) illustra-ting different stages in the unlocking operation of the complete lock.

The working parts of the primary and secondary locks, l?, S, are housed in superposed casings 10, 11, the inner or middle wall 12 being common to both, while casing 11 is provided with an outer wall 13. 1n the latter isa keyhole 14, and in wall 12 is a keyhole 15. The keyholes have one end in registry but extend at right angles to each other, as will be seen by comparing Figs. 2 and 4, for example, and they have a common stem or pin 16 on which the key 17 lits.

The primary lock, Fig. 3, is provided with two separate and independent bolts 18, 19, of the sliding type. The first is connected to a flat plate 2O provided with an actuating nose 21 (shown in dotted lines), for cooperation with the bit ofthe key to advance and retract the plate and bolt, and the advance and retraction of the plate and bolt are controlled by three pivoted tuniblers, 22, 23, 24, the bit of the key being properly notched to swing the tumblers and carry the teeth or stops (one of which is shown at 25) out of the path of the stud 26 on said bolt 18, and so permit the latter to be retracted. lt may be stated here (and more fully eX- plained hereinafter) that the bolt 18 is retracted in two steps, one by spring 27 when the bolt is released by the secondary lock and the other when the bolt is actuated directly by the key. Opposite the teeth 25 th-e tumblers may be provided with one or more false notches, as 28, to engage the stud 2G when a false key, having a bit with one or more notches of insufflicient depth, is used. The tumblers are held yieldingly in the positions shown in Fig. 3 by separate springs 29, 30, 31, the ends of which are fitted tightly in deep notches in the outer edges of the tuniblers. Bolt 19 is protected by a tumbler 32, Fig. 3, carried by a spring 33. Springs 34, tend to hold the bolt in the half-way position shown in Fig. 8. Bolt 19 is provided with stud 36 projecting through a slot 37 (Fig. 4) into the secondary lock, while the stud 26 of bolt 18 projects into the secondary lock through a slot 38, Fig. 4.

rThe secondary lock is provided with a pivoted latch 39, Fig. 4, having a shoulder or tooth 40 which, when the bolt 18 is in advanced or locking position, shown in Fig. 4, is above the stud 26 and so prevents retraction of the bolt until said latch has been swung out of the way. 0n the same pivot is a dog 41, urged into engagement with the latch by a spring 42. This dog can swing freely on its pivot in the counterclockwise direction (as viewed in Fig. 4) without affecting the latch 39, but when swung in the opposite direction it swings said latch in the same direction against the tens1on of its spring 43 and so releases stud 26 from the stop 40, whereupon the spring 27, Fig. 3, shifts the bolt 18 halt-way to open position, as shown in Fig. 6. The secondary lock also has a pivoted latch 44, provided with a hook or stop 45 to engage stud 36, Figs. 4 and 5, when bolt 19 is in locking (or advanced) position and so prevent retraction ot the bolt until the latch is swung out of the way against the tension of its spring 46. rlhis is effected by the dog 47 (on the same pivot) which can, however, swing counterclockwise (as viewed in Fig. 4) without affecting said latch. See Fig. 5. A spring 46 urges the dog into engagement with the latch.

Adjacent to the dog 41 the secondary lock has a sliding bar 49, urged upwardly to the position shown in Fig. 4 by a coil spring 50, and provided with a toe 51 extending in the same direction as the nose of dog 47. rlhis bar can be shifted downwardly, against the tension of its spring, to an extent permitted by the length of its slot 52, as will be readily understood. The aforesaid toe 51 lies above the position taken by the key-bit when the key is iirst inserted into the secondary lock, as shown in Fig. 4, thereby preventing counterclockwise rotation of the key, as will be readily understood.

The operation of the lock is as follows: All the parts being in the positions shown in Fig. 4, the key 17 is (1) inserted into the secondary lock, as shown in Fig. 4, and is (2) turned clockwise past the dog 41, the latter swinging idly in the counterclockwise direction, as indicated by the dotted lines in Fig. 6, after which the key is (3) turned counterclockwise, thereby swinging the dog 41 and latch 39 in the clockwise direction and releasing stud 26, as shown in Fig. 6, whereupon spring 27 (Fig. 4) raises bolt 18 part way to its unlocked position, bringing stud 26 against teeth 25 on the tumblers 22, 23, 24. The key is now turned in the clockwise direction, passing the dog 47 idly and by engagement with the toe 51 of bar 49 cams the latter down as far as permitted by the slot 52 (sho-wn only in Fig. 4). |The key-bit is then in registry with the upper keyhole 14, and the key is (5) withdrawn. The key is now (6) :re-inserted into the secondary lock and (7) turned clockwise a quarter turn till in registry with key hole 15, then (8) passed down into the primary lock and turned clockwise a whole turn till again in registry with the key hole 15. ln the latter turning movement the bit engages tumblers 22,` 23, 24, (Fig. 3) and wings them out of engagement with the bolt 18, and then, engaging the nose 21 raises the bolt to the unlocked position, as shown in Fig. 7. The key (the bit being in registry with keyhole as before stated) is now (10) withdrawn inta) the upper or secondary lock and (11) is turned clockwise passing dogs 41 and 47 idly, until arrested by the toe 51 of bolt 49, then (12) turned counterclockwise a slight distance, thereby swinging dog 47 and latch 44 clockwise and di sengaging hook from stud 36, as in Fig. .r 8, whereupon spring (shown only 1n Fig.

with the nose 53 (Fig. 9) on bolt 19. When the key-bit, turning in the direction of the arrow in Fig. 9, reaches the position there shown, the bolt 19 is completely retracted, and, bolt 18 having also been completely retracted, as above described, the door (or other closure) with which the lock is used can be opened.

Any variation lfrom the above operations nullies all that had been done before and makes it necessary to begin anew. For eX- ample, suppose that after operation (3), by which latch 39 is disengaged from stud 26 thereby releasing bolt 18 and permitting its spring 27 to shift to the half-way position shown in Fig. 6), the operator goes at once to operations (11) and (12), thereby releasing bolt 19 from hook 45. Both bolts are now free from the secondary lock. But suppose the operator passes the key on into the primary lock and turns it,-say clockwise to complete the retraction of bolt 18. rllhis he may do; but having passed the tumblers 22, 23, 24, and nose 21, further clockwise movement of the key will advance bolt 19 and reengage its stud 36 with hook 45; whereas counterclockwise movement of the key will shift bolt 18 back into locking position. Gr, if the operator begins with step (11), then (12), (14), (15), and (16), leaving bolt 19 wholly retracted, and then goes k to operation (1), (2), etc., to retract bolt 18, he will, in retracting the latter, readvance bolt 19 and rengage it with hook 45 of the secondary lock. 0r, it the operator at step (16) turns the key too far it will pass the nose 53 (Figs. 3 and 9) and spring 34 will at once shift the bolt 19 back to the position shown in Fig. 8. rllhen in trying to retract the bolt 19 again by clockwise movement of the key, he shifts the bolt again g into engagement with hook 45; or, it he turns the key counterclockwise to bring the bit again into proper engagement with the nose 53, he re-advances bolt 18.

iis

To advance both bolts from fully retractif; J

step (16), then (b) clockwise until the bit 1 is in registry with keyhole l5; whereupon the key is raised into the secondary lock, turned 900 countercloclnvise into registry Tith hole lli, and Withdrawn.

lt is to be understood that the invention is not lim'ted to the structure herein specifically described and illustrated, but vcan be embodied in other forms Without departure from its spirit as deflned by th-e appended. claims.

claim:

l. A. primar;v lock having two bolts shiftahle independently by the same key, in coinbination With a secondary lock having latches engaging the said bolts and releasable therefrom independently of each other by the same key.

2. A primary lock having a tumbler controlled bolt provided with means for coperation with a key for advance and retraction thereby, a second bolt independent of the first, but capable of being advanced and retracted by the same key; in combination with a secondary lock having a latch engaging the rst bolt to prevent retraction thereof, a second latch engaging the second bolt to prevent retraction thereof, and means permitting release of the bolts and retraction thereof only by a plurality of manipulations of the key in a predetermined order.

n testimony whereof I hereunto ati-ix my signature.

PASQUALE RANONE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ef atents, Washington, D. C. 

